File:Flickr - brewbooks - Basalt rock segments - Giant Ripples, West Bar of Columbia.jpg
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Noticed the sporadic sagebrush and a little later we found some Pediocactus simpsonii (Football cactus) We can see that the grassland is occasionally broken up by segment of basalt talus rock. Wondered why this occurred? listorama and I went for a morning hike among the giant ripples of the West Bar - which were formed as part Ice Age Floods when Glacial Lake Missoula let go about 12,000 years ago. Thanks to listorama getting me me out there (relatively safely) on a remarkable 2 day trip to explore some geology. Link to listorama West Bar 2008 photos Pediocactus, Echinocereus and Echinopsis species are often called Hedgehog cactus, after the Hedgehogi090708 323 |
| Date | |
| Source | Basalt rock segments - Giant Ripples, West Bar of Columbia |
| Author | brewbooks from near Seattle, USA |
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This image, originally posted to Flickr, was reviewed on 15 June 2012 by the administrator or reviewer Matanya, who confirmed that it was available on Flickr under the stated license on that date. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 10:01, 15 June 2012 | | 3,264 × 2,448 (5.66 MB) | Matanya (talk | contribs) | == {{int:filedesc}} == {{Information |Description=Noticed the sporadic sagebrush and a little later we found some Pediocactus simpsonii (Football cactus) We can see that the grassland is occasionally broken up by segment of basalt talus rock. Wondered... |
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